Stilt



R. J. LYNCH.

STILT.

APPLICATION FILED MAR. 27. 1920.

1,347,958. v PatentedJuly'27, 1920.

WITNESSES wm mfwy A TTORNE YS pensive V to manufacture,

ROBERT JAMES LYNCH, or TAMAQUA, PENNSYLVANIA. f

STILT.

Specification of Letters Patent. :Patent ed July 27, 1920.

Application filed March 27, 1920. Serial No. 369,318.

To all whom it may concern:

Be it known that I, ROBERT J. LYNCH, a citizen of the United States, anda resident of Tamaqua, in the county of Schuylkill and State ofPennsylvania, have invented certain new and useful Improvements inStilts, of which the following isa specification.

My invention relates to an improvement in adjustable stilts, and hasparticular reference to such as comprise a step adapted to beassociatedwith a standard in such manner as to permit the ready verticaladjustment thereon and its positive securement in its ad-.

justed position.

An important object of the invention is to provide a step or footsupport stamped or cut from apiece of sheet metal.

A further object of the invention is to provide a device of theabovementioned character, which is simple in construction, inexconvenient inuse, and strong and'durable.

In the accompanying drawings forming a part of this specification, andin which like numerals are employed to designate like parts throughoutthe same,

Figure l is a perspective view of a stiltembodying my invention,

Fig. 2 i an enlargedperspective view of the foot support, 1

Fig. 3 is a horizontal sectional view on the line 3-3 of Fig. 1,

Fig. 4 is an enlarged sectional view on the line 4-4 of Fig. 3, and,

Fig. 5 is a view showing the blank from which the foot support isformed.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of my invention, a standard 1, preferablyrectangular in cross section, is provided on one of its outer faceswitha plurality of equally spaced transverse recesses 2, which enter thestandard on an incline, bringing the bottom of the recesses somewhatbelow the lower edge of the openings when the standard is in a verticalposition as shown in Fig. 1.

Adjustably connected with the standard 1 and slidably mounted thereon,is the step or foot support 3 which is preferably formed of a singlepiece of sheet metal. In the production of this improved step, orstamped from a sheet of metal in substantially the form shown in Fig. 5.This blank comprises a central portion 4, having at its opposite endsthe axial extensions 5 and 6,

a blank is cut and at the opposite sides thereof, the side wings 7 whichare provided along-that portion of their upper edges which areoppositely inclined with respect to the longitudinal axis of the centralportion 4:, with the flanges 8 which have interlockingly engageableconnecting means preferably in the.

form of a bendable tongue 9 and slot 10. Near the upper end of the sidewings 7, at a distance from the flanges 8 slightly greater than thehorizontal depth of the standard to which the ste is to be applied, arethe holes 11. I

In forming the step from the blank above described, the ide wings 7 arebent on the dotted lines (Fig. 5) toward each other and at right anglesto the central portion 4. The inturne'd meeting flanges 8- are bentinwardly at right angles to the side wings 7 and the tongue 9 insertedin the slot 10, after which the tongue 9 is bent downwardly as shown inFig. 4;, thu holding the side wings 7 and the inturned meeting flanges 8in fixed relation. The surfaces of the inturned flanges 8 are corrugatedor otherwise roughened to prevent the foot fromslipping off of the treadportions Extension 5 is then folded upon itself and the doublethicknesswith rounded upper corners is bent upwardly at right angles tothe inturned meeting flanges 8. This upturned'extension 5 is provided atits central portion with a vertical rib 5 which overlaps the flan esSand holds their meeting edges in fixed relation. The extension 6 isrolled inwardly forming a reinforced edge which bears against a face ofthe standard 1 when the step is applied. A transverse bolt 12 adapted torest in the recesses 2 is inserted through holes 11 in side wings 7 andholds them in parallel spaced relation.

When it is desired to set the step at a predetermined height on thestandard 1, they step above described is placed on the standard as shownin Fig; 1. Transverse bolt 12 is caused to enter one of the recesses 2of the standard 1 and supports the step in position. To hold the treadportion 8 in a perpendicular position with respect to the standard 1,the reinforced edge 6 of the central portion of the step bears againstthe inner edge of the standard. The side wings 7 extend rearwardlybeyond the standard and along opposite sides thereof to hold the stepagainst lateral displacement.

When it is desired to change the position of the step upon the standard,the step is swung slightly upward from a horizontal position and thebolt 12 is caused to disengage the notch 2. Due to the. slight clear.ance between the tread portion '8 and the bolt 12 as shown at 13 in Fig.8, the step is 7 joined claims.

Having thus described my invention, I claim .1. In an adjustable stiltthe combination of a standard having one of its faces provided with aplurality of transverse recesses; a step vertically movable upon thestandard, said step having side wings in parallel relation; an inclinedbody portion joining'the side wings and provided at its lower end with areinforced bearing edge and at its upper end with an angular extensionprojecting above the upper edge of the side wings; said side wingshaving their upper straight edges provided with inturned meeting flangesalong ,a portion thereof, said flanges having interlockinglyrengageableconnecting means; and a transverse bolt connecting the free ends of theside wings adjacent their upper edges.

2. In an adjustable stilt the combination of a standard having one ofits. faces provided with a plurality of downwardlyfextending transverserecesses; a step formed. of sheet metal vertically movable upon thestandard, and having side wings in parallel.

spaced relation, said side wings having their upper straight edgesprovided with inturned meeting flanges along a portion thereof, saidmeeting flanges having a series of transverse corrugations andinterlockingly engageable connecting means; an inclinedbody portionjoining the side wings and having at its lower end a reinforced bearingedge and at its upper end an angular extension projecting above theupper edge of the side wings, said angular extension having V pair ofside'wings and a" body portion between said side wings provided at itsopposite ends with bendable extensions, said side Wings having oppositestraight edges inclined with respect to the longitudinal axis oftheb'ody portion and provided with bendable extensions projectingtherealong for a portion of the length thereof, and havinginterlockingly engagea-ble connecting means, as described.

v 4. An adjustable stilt comprising a standard provided at its rear edgewith a plurality of'transverse recesses; a step having side plates alongopposite sides of the standard, said side plates extending for theentire length of the step, the upper portion of the side platesextending rearwardly beyond the standard, such extensions being providedwith apertures; and a transverse bolt joining the extensions and adaptedto rest Within the transverse recesses of the standard. 7 V

I ROBERT JAMES LYNCH.

